English adjective: ultraviolet | |||
1. | ultraviolet having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible spectrum at its violet end | ||
Samples | Ultraviolet radiation. An ultraviolet lamp. | ||
Similar | invisible, unseeable | ||
Antonyms | seeable, visible | ||
English noun: ultraviolet | |||
1. | ultraviolet (phenomenon) radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays | ||
Synonyms | ultraviolet illumination, ultraviolet light, ultraviolet radiation, UV | ||
Broader (hypernym) | actinic radiation, actinic ray | ||
Narrower (hyponym) | sun-ray, sunray | ||